Forging machine



June 2, 1931. f l1. LEslcKo 1,807,596

FORGING MACHINE Filed April 1'7I 1925 V75/5 t #Il t I Y Z9 lzven//ar:

cfosepl @sic/75@ @y Patented June 2, 1931 UNITED STATES PATENT OFFICE JOSEPH LESICKO, OF LIVINGSTON, ILLINOIS, ASSIGNOR TO SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS FORGING MACHINE Application filed April 17, 1925.

This invention relates to forging' machines especially adapted to forge coal mining machine cutter bits.

In forging a work piece, herein a coal mining machine cutter bit, it is desirable to discharge the work piece upon completion of the forging operation in accordance with the operation of some other mechanism associated with the machine. -It is further desirable l0 to control both the discharge and this other mechanism by a common operating member. Thus the operations of two suitable mechanisms are coordinatedby suitable means andin the specific embodiment ofthe invention Ih'ave coordinated the discharge mechanism with the bit blank feeding mechanism, although any other mechanism mightreplace the feeding mechanism such, for instance, as the means for controlling actuation of the forging die. The result of coordinating these mechanisms is to discharge automatically the bit after a complete forging operation. An object of the invention is, accordingly, to provide improved means for automatically J discharging a cutter bit which in the speciiic embodiment includes discharge mechanism of a laterally movable type `actuated through suitable mechanism by a hand lever controlling the feeding of the bit blank, said mechanism being so arranged and constructed that the hand lever effects discharge only after the feeding mechanism is rendered completely inoperative. A further object of the invention is to provide improved means whereby the selected coordinated mechanisms will be operated only in a predetermined sequence and are adapted to be interlocked to preclude possible damage to the machine in case of careless operation. It is a further object of the invention to provide improved coordinating means whereby single operating member is movable in a plurality of directions to effect the particular sequence of operation. In the illustrated specilic embodiment of the invention this means includes a hand operated lever movable in a forward direction to effect feeding of the bit blank and in the reverse direction to discharge the same. It is also an object of the inu vention to provide improved meansV whereby Serial No. 23,946.

the discharge mechanism will be returned automatically to its normal operating position upon completion of the discharge operation.

In the accompanying drawings I have shown for purposes of illustration one form which my invention may assume in practice.

In these drawings,-

Fig. l is a side elevation of a forging machine, parts being broken away to facilitate illustration.

Fig. 2 is an end-elevation, parts being broken away to show details of construction.

Fig. 3 is a vertical sectional view of the forging mechanism and the lateral bit discharging mechanism. Fig. 1- is an enlarged fragmentary sectional plan viewof the coordinating means between the feeding mechanism and the bit discharging mechanism.

Fig. 5 is an end elevation of the coordinating means. f

In the illustrative embodiment of my invention I have shown the same associated with acutter bit Sharpener in general forming no part of my present invention except as it cooperates therewith. This cutter bit sharpener comprises a bed plate 1 mounted upon legs 2 and 3 and carrying a belt driven fiy wheel 4 to reciprocate a cross head 5 carrying a roller forging die 6. Disposed within the Zone of travel of the die is a combined cutter bit blank holding and ejecting mechanism comprising a laterally movable member 7 having an inclined slot 8 to receive a blank 9 resting when forged against a stationary die face 10 formed on a block 11 fixed to the base 1. Feeding or positioning means for the blank comprises a member 12 having an inclined blank abutting surface 13 longitudinally mov-ed by a gear segment 14 meshing with a rack 15 carried by the member 12. A shaft 16 supports the segment and rotates the same upon actuation of a lever 17 disposed at one side of the base 1 which has a pawl and ratchet mechanism 18 to hold the feeding member 12 against rearward movement duringa forging operation. Forward movement of the member 12 will cause the inclined surface 13 to force (iii the blank 9 upivardly and accordingly the roller die 6 will continually forge the bit portion until completed. To prevent lateral movement of the ejecting member 7 during a forging operation the member 12 upon forward movement interlocks therewith by moving into a longitudinal slot 19, formed in the laterally movable member 7.

The present invention relates to an improved mechanism for ejecting the Work piece or bit. `Elements other than those chosen could of course be used to effect this operation. In the specific embodiment herein disclosed I have coordinated theoperations of the ejecting member 7 with the operation of the feeding member 12 so that as soon as the fr )rging operation is completed, the operator inl order to eject the bit need only in ove the lever 17 to its rearni-ost position. 'lio accomplish this a rod 20 threadedly connected to the member 7 extends through the side of the base 1 and, an interposed spring 21* A. bell crank 9,2 connected by a vertical pivot 22 threadedly secured in the base 1 has a long arm` 24, engageable with a pin 25 carried by the rod 2O and a. short arm 26 engageable by a vertically extending arm. 27 pinned to the shaft 16 Whichis actuated by the lever 117.

In operation, assuming that the forging operation is just completed which will necessitate an extreme forward position of the member 12 and lever 17 then the arm 27 will be entirely free of the bell crank arm 25 and upon rearward moven'ient of the lever 17, feeding element 1Q will first be remove-fl from the slot 19 and ivhen the member. 12' is just free of said slot the arm 27 engages arm Q6 and upon further movement of the hand lever 17 W'll cause outward` movement of the arm 2f with consequent lat-eral movement of the ejector 7, whereupon the bit will1 fall from the open slot S through an opening Q8 ont-o a. chute 29. It will of course be understood that during this operation reciproeation of the forging. die will be stopped by lifting of the operators foot from the foot treadle 30. iVhen the operator releases his hand from the lever L?. the .spring 21 will cause the ejector 7 to move to its normal position ready to receive another blank.

While I have in this application specifically described one form which my invention may assume in practice, it will be understood that this embodiment of the same shown for purposes of illustration and that the invention may be modifiedl and embodied in various other forms Without dejnirtingI` from its spirit or the scope of the appended claims1 IVhat I claim as neiv and desire to secure by Letters Patent is z 1. A forging. machine having a movable die, means for positively feeding a Work piece including an operating member, means for ejccting;` the Work piece from the machine independently of movement of said die, and means for interconnecting said feeding and ejecting means to enable said ejecting means to be actuated by said ope ating member.

2. A forging machine'comprising cooperating forging dies, and means for controlling the position of a work piece relative thereto including a plurality of elements movable linearly in angularly disposed directions and each adapted to effect a controlling` action on a Work piece, and a common means for moving both of said elements to effect one controlling action and then the other.

3, A forging machine having relatively movable dies, a holding element for positioning a Work piece during forging. means for positively feeding said ivork piece, and means adapted for operation independently of. said dies for actuating said feeding meclianism, said latter means adaped also to move said holding member to a position to permit said Work piece to be ejected by gravity.

Il. A cutter bit sha1-poner having a Work piece support normally stationary during the forging` operation, mechanism for feeding a Work piece relative to said support, mecha-l ism for ejccting the work piece therefrom, and a common control element for said mechanisms ope ative on one manual movement to feed the Work piece and on another movement to render the feeding means inoperative and eject said Work piece.

5. A cutter bit sharpener having substantially stationary means for supporting a Work piece during forging, mechanism for ejecting the Work piece therefrom, and means including a single controlling element for positively feeding said Work piece and operatingsa id ej ecting mechanism.

6. A cutter bit Isharpener having bit blank supporting means normally stationary duringV the forging operation and mechanism for feeding a bit blank relative to said supporting means and ejecting a bit blank therefrom including a control element manually operable in one direction toy effect feed of said blank durin-g forging and manually operable in the other direction to eject the same.

7. A forgiiig machine having a movable die, a work piece holding mechanism for holding the Work substantially stationary during` a forgingl operation. and means including a common controlling elen'ient for feeding the Work piece in one direction and ejecting the same in a direction at an anglt` to the direction of feed.

S.` A forging machine comprising relatively movable dies, Work piece holding mechansm, andmeans including a single element for controllingl a plurality of operations affecting the Work piece, one being to feed the Work piece relative to the holding mechanism during forging and the other to eject said work piece from the machine, the action of said element being independent of relative movement between said dies.

9. A cutter bit sharpener comprising means for holding a blank, means for feeding said blank, means for ejecting the same adapted to be interloclred with said feeding means, and a common element for releasing said interlock and actuating said ejecting means.

10. A cutter bit Sharpener comprising means for holding a work piece during a forging operation, means for feeding the piece including a longitudinally movable member having an inclined work piece abutting surface, a laterally7 movable Work piece ejecting member having a slot to receive said feeding member, and means including a common operating lever adapted to release said feeding member from said slot and thereafter to move said ejecting means to discharge the work piece.

11. A cutter bit sharpener comprising means for holding a work piece during a forging operation, means for feeding the piece including a longitudinally movable member having an inclined work piece abutting surface, a laterally movable Work piece ejecting member having a slot to receive said feeding member, and means including a common operating lever adapted to remove said feeding member from said slot and thereafter to move said ejecting means to discharge the work piece, and a rack and pinion for operating said feeding mechanism.

12. A cutter bit Sharpener comprising a bit holder stationary during a forging operation, a movable die for shaping the bit, mechanism for feeding the bit relative to said holder during a forging operation, actuating mechanism for said feeding mechanism also operative to actuate said holder to discharge a bit, and means for automatically returning the holder to its normal holding position.

i 13. A cutter bit Sharpener comprising a bit holder for holding a bit substantially stationary during a forging operation, mechanism for feeding said bit relative to said holder during forging, actuating mechanism for said feed mechanism also operative to move said holder to discharge a bit, and yielding means for automatically returning the holder to its normal holding position.

14. A cutter bit Sharpe-ner comprising a bit holder for holding a bit substantially sta-` tionary during a forging operation, means for feeding said bit relative to said holder during forging, actuating mechanism for said feed mechanism also operative to move said holder to discharge a bit, means including a rod for connecting said actuating mechanism with said holder, and means for automatically returning the holder to its normal holding position comprising a spring surrounding said rod.

15. A cutter bit Sharpener comprising 'a holder for holding a bit blank substantially stationary during forging, actuating means for said bit holder including a` rota-table shaft, a bell crank operated by said shaft, and means connected to said bit holder and engageable with said bell crank whereby said bit holder is moved to a position to discharge a bit upon movement of said operating shaft in one direction.

16. A cutter bit Sharpener comprising a vit holder for holding a bit substantially stationary during forging operation and movable laterally to discharge the bit after forging, operator controlled controlling mechanism including an operating saaft, a i'od eX- tending laterally from said bit holder, means connecting said operating shaft and said rod for moving the bit holder laterally to eject a bit and a spring forreturning said bit holder to normal position when said controlling mechanism is released by the operator.

17. A cutter bit Sharpener comprising bit feeding mechanism for moving a bit to forging' position, bit ejecting mechanism, and common operating means for said mechanisms including a rotatable shaft and connection between said shaft and one of said mechanisms including a bell crank.

18. A cutter bit forging machine comprising a laterally movable bit ejecting inembei having a laterally extending rod, bit feeding mechanism having a shaft extending in the same direction as said rod and an armfixed thereto, and means for coordinating the operations of said feeding and ejecting mechanisms including a bell crank engageable respectively with said arm and said rod` 19. In a forging machine, a laterally movable Work piece holder, a longitudinally movable work piece feeding member, and means including a common operating element for first actuating said. feeding member and thereafter actuating said holder to eject they work piece from the machine.

20. In a forging machine, a stationary die` a movable die, a wor r piece holder, means for feeding the work piece in said holder relative to said stationary die including a meinber adapted to lock said holder in position during a forging operation on the work piece, means for ejecting the Work piece from the machine, and means for coordinating said feeding means with said ejecting means whereby the Work piece may first be fed and thereafter ejected.

21. A forging machine having means including a Wedge for feeding a Work piece, means for ejecting the work piece from the machine, and means including a common operating element for coordinating the operations of said feeding and ejecting means.

22. A forging machine having means including a longitudinally movable wedge for feeding a work piece, laterally movable meaii-s for ejecting the work piece from the machine,

and means including a common operating element for coordinatine' the Operations of said feeding and ejeeting` means.

23. A forging machine having stationary 5 and movable dies, means for feeding a Work piece relative to said stationary die, means for ejecting the Work piece from said stationary die, and means for coordinating the operations of said feeding means and said eject- 10 ing means including a common operating,` element connected to both said feeding means and said ejecting means whereby the Work piece may first be ifed and thereafter ejected. 24. A forging machine having a stationary 15 die and movable die, a bit holding member having a slot for receiviniiv the werk piece, said member remainingr stationary during` the 'forging operation, means for feeding' the work piece upwardly or downwardly in said slot relative to said Stationary diej means for ejectin the work niece from the. machine, and means for coordmating` the operations of said feeding means and said ejecting means including a commen operating` element con- S' nected with said feeding and ejecting mechanism whereby the work piece may first be fed and thereafter ejected.

In testimony whereof affix my signature.

JOSEPH LESICKO. 

